﻿/**
 * Copyright (C) 2013 original author and authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NGuice.Inject.Internal.Util;

namespace NGuice.Inject.Name
{
    /// <summary>
    /// 元注释名称的事物
    /// </summary>
    [Serializable]
    [BindingAnnotation]
    public class NamedAttribute : Attribute
    {
        private string value;

        public NamedAttribute(string value)
        {
            this.value = Preconditions.CheckNotNull(value, "name");
        }

        public string Value
        {
            get
            {
                return this.value;
            }
        }

        public override int GetHashCode()
        {
            // This is specified in java.lang.Annotation.
            return (127 * "value".GetHashCode()) ^ value.GetHashCode();
        }

        public override bool Equals(object o)
        {
            if (!(o is NamedAttribute))
            {
                return false;
            }

            NamedAttribute other = (NamedAttribute)o;
            return value.Equals(other.Value);
        }

        public override string ToString()
        {
            return "@" + typeof(NamedAttribute).Name + "(value=" + value + ")";
        }
    }
}
